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Convert a Hex string to UIColor in Swift
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| // Creates a UIColor from a Hex string. | |
| func colorWithHexString (hex:String) -> UIColor { | |
| var cString:String = hex.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).uppercaseString | |
| if (cString.hasPrefix("#")) { | |
| cString = cString.substringFromIndex(1) | |
| } | |
| if (countElements(cString) != 6) { | |
| return UIColor.grayColor() | |
| } | |
| var rString = cString.substringToIndex(2) | |
| var gString = cString.substringFromIndex(2).substringToIndex(2) | |
| var bString = cString.substringFromIndex(4).substringToIndex(2) | |
| var r:CUnsignedInt = 0, g:CUnsignedInt = 0, b:CUnsignedInt = 0; | |
| NSScanner.scannerWithString(rString).scanHexInt(&r) | |
| NSScanner.scannerWithString(gString).scanHexInt(&g) | |
| NSScanner.scannerWithString(bString).scanHexInt(&b) | |
| return UIColor(red: Float(r) / 255.0, green: Float(g) / 255.0, blue: Float(b) / 255.0, alpha: Float(1)) | |
| } |
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